Whirling seesaw



J. E. SMITH.

WHIRLING SEESAW.

APPLICATION FILED SEPT. 2e, 1919.

Patented J une 29, v1920.

2 SHEETS-SHEET l.

J. E. SMITH.

WHIHLING SEESAW.

APPLICATION FILED SEPT. 26, I9I9.

Patented June 29, 1920.

2 SHEETS-SHEET 2.

f ever they occur,

UNITED A srA-TEsfP ATE-NT IQFFIcE.

JAMESE. SMITH, 10F-ST. Louis, MISSOURI, AssIeNon, BY n IREcT AND MESNE ASSIGN- MENTS, To SMITHVAND SEPERZGOMPANY, orsT.',LoUIs,MrssoURI, "oonro'a- A Tron oFMrssoUiu.' i

To `all wtoniz't mayfconcer'n.: .1 r -Be `it known that I, JAMES E. SMITH, a citizen of the United States, residing .at the' city of St.'Lou-is,.inthe State of Missouri,V

-have invented certailn'new and useful Improvements in Whirling Seesaws, of which'- 4the following is "aspecitication This invention may be constructed either as a toyor asalargerlsized amusementidevice `i'orl the entertainment, for 'a charge,

of visitors at summer @gardens places of amusement.

This device is a whirling or rotary seesaw, and combines the np-anddown moveand similar ment customary in seesaws with a rotary l The beam y8 may be made of asohd member icont-amingfa slot 25 orfaniopening 1n .lieu f motion upon a central pivot;

In addition, this device is .so constructed` part `of this specification, in Vwhich'like numbers of reference vdenote like partswherf Figure 1 is a top-plan view; Fig. 2 is a side-elevation; Fig. 3 isa .detail onl antenlargedscale taken on the line 3 3 `in Fig. 1; Fig. 4 is a sidefelevationushowing! `the means of attachment of alever to a brace;

VFig. 5 is an elevation vata. right-'angleV thereto taken on the line 55--5 1 in Fig'. 4.`

'.Any suitable base orcentra'l 4standard may` be used, but, as shown in the drawings, the base consists of cross-members'l, surmounted by a platform 2, `'from which rise posts 3, adapted to support track 4f.k Track L is provided with notches 5 or the like, adapted to actl as :fresistants against the push ofV levers -6 and 7 l i When one end of the beam 8 of the seesaw is depressed, inthe ordinary mode ,ofy operation, such depression exerts a push upon lever 6, and, when the opposite end of beam 8 is depressed, such depression imparts a push to lever 7 Braces 9 and 10 are provided at their upper ends with castings 11 and 12, which terminate in plates 13 and 14, having therethrough openings 15 and 16, through which passes a spindle 17 that is supported by central standard 18. Thus, braces 9 and v10 are inI loose pivotal attachment to standard 18. They are held from rising on spindle 17 by block 19, which contains a socket 20, to re- WHIRLING lsEEsAw'.l

track 4," beingprovided with a ylip 38, for

p ilspecicatonfof Letters Patent. Pittited i i fpfliaigi; 'ledseptemlbep 26, 1919.,V serial. No. 326,434. i

of the passengers in seats 21 and 22 is suf-l ficient to keep block )19 from'riding so far.,

up. onspindle17 as topermit the disengage-v lment of plates l1311atil =1it` therefrom. -jwBlock 19 is `fastenedby screws 23 `to idel pending brackets 24, attached te beam.

f Beam 8 is preferably providedk with a slot v25, in which the tongue 26,extendingv trom seatsv21-and 22, `is adapted to slide.` The vlsaid tongues y26 are fastenedkfsby screws 27to thesaid seats 21- and v22, and are provided with foot-rests .28, extending. upwardly therefrom. They/'are `held in rslot 25. by plates29, held thereto by. thumb-screws 30.

thereof,or"it may be composed, `as shown inV the drawings, of. separate pieces orstrips 31, fastened togetherV bycleats32 and 33,

notched track 4,`while the main body 37 l y of the said clasps 35 rides upon Ithe notched lengagement with the notches 5.'

respectivelA y tached to the beam 8.

i 9G v Levers 6 and 7 are pivoted, atr39 and 49 y, inv bifureated4 `brackets 41, `at-v Whenonevend of vbeam 8y is depressed'iin i said lever 6, engages with an adjacent notchv 5 onV traek"4, and the #harder the" impulsion 'downward of that end of beam v8 the harder the push thatthe said notch 5 gives to the, end of lever 6, thereby causing. beam 8 to rotate in the f direction in which the said push occurs. beam 8 isA depressed, lip 38, on clasp 35, at the end of lever 7, pushes against an adjacent notch and adds further impulse to the rotary motion of the beam 8, and thus', while seesawing up and down, the beam 8 simultaneously revolves on standard 18. A lip 42, on clasp 35, is pivoted at 43 to another clas'p-member 4:4, which is pivoted. by

Whengthe opposite end of pin 45 to the lower end of each of the levers 6 andV 7.

In practice, ywhen the seesaw'begins to dip, the lip BS'immediately' takes hold of La notch 5.

f Y 23, the beam 8 fisin pivotal'relation to the 'block 19 and that, by reason Yof block 19 be! ing mounted on spindle 17,1the' beam 8 is 'ard 18., Y 1:1 1,.:

*Having thus.' Ydesc :hereby reservethe benefit of all changes in adapted, to rotate on standard 18. Beam 8 V1s .thus-'in double pivotal relation to standibd this-invention, I

form, arrangement, order, or use of parts, as it isevidentzthat'many minor changes may v vbe made therein without departing' from the imV i ss

spirit 'offtliis invention or the scope of the following claims.V f 1 e I claim: I ll: Thencombination of a central support, Ya

circular track thereabout,-: braced f means movable. .over the 4track and engageable therewith, at times,`a beamin'double pivotal Yrelation to the support,and.-levers pivoted to the beam and to said means. Y y Y 2. The combination of a base, a notched otalconnection between the said leverjand thesaidlip.w ,Y

4. In a device of the character described, the combination of a track,a central support, a beam,a block-supported from the said beam', a pivotal connection between the y .A said block and the saidbeam,a pivotal connection between the said block Aand the" said support, av brace in pivotal-v. connection with ythe said'supporty and extending Vto the said track, a lever in pivotal connectionfwith .the

This permits a complete dip.. It' will be noted that, by reason .of screws said beam, and a pivotal connection between.4 the said lever and the vsaid brace,-thesaid pivotal connection being adapted; to. permit mOVnfleIlUnV two directions.

5. In a deviceof the character described,` lthe combination of a track, ajcentral sup-f port, a beam, ablock supportedl from the said beam, a pivotal connectionbetweenthe 4said block andthe Saidibeam, a pivotal connection between the said block and the said support, a brace in pivotal connection with Ithe said support and,` extending to the said track, a! lever inpivotalfconnection with the Y said beam, and pivotalconnection between the saidleverand .the said brace, the said 'beam havinga slot and seats mounted thereon having membersadapted'fto slide lthe 6. VIn a device offthecharacterdescribed,

the combination of' al track,` acentral supV ,i

port, Va beam, aV block supported from lthe Y said beam,a'pivotal connection between the said block and the said beam, a pivotal connection between the said block .and the said support, a brace in pivotal connectionwith the saidvsupport and extending to the'y said track, a lever in pivotal connection with' thesaid beam,fand a pivotal connection beitween the said lever and the said bracegthe said beam having a slotand4 seats mounted Vthereon having members adapted to slide, in

the said slots. and being V fastened therein by plates running transverselyqrelative Yto the said slots. n Y Y. f f

V7. The combination of a central support, a track encircling the same,`a beam in double pivotal relationfto said support, a brace eX tending from :the supportv provided with an engaging portion, a lever extending Afrom the beam, and pivotal connection between f said lever and saidfengaging` portionffA 8. The combination of a central'support,-a I' circulartrack thereabout having notches in its upper side, means movableover saidctrack and engageable with the notches therein, at Y Y times, a beam in double pivotal relation'to the support, andV opposed ,levers pivoted to said beam and said means. f

Y In testimony whereof` I hereunto aiiix'my signature. H -Y y. f

JAMiasE E.' sMiTH', .f 

